Temperature dependence of surface polar state of SrTiO3 ceramics obtained by piezoresponse force microscopy / Andreeva N., Alikin D., Turygin A., Kholkin A.L., Shur V.Y., Filimonov A., Lessovaia S. // Ferroelectrics. - 2015. - V. 477, l. 1. - P. 1-8.

ISSN:
00150193
Type:
Article
Abstract:
The existence of polar state on the surface of strontium titanate ceramics was obtained by piezoresponse force microscopy (PFM) in temperature range from 8 to 295 K. This polar state is nonswitchable and relaxes fast at room temperature. This fact is attributed to charge injection from tip, which provoked the formation of oxygen vacancies in subsurface layer. Low temperature dynamics of surface piezoresponse reveals an increasing of PFM contrast at 110-130 K, associated with surface structural phase transition. Temperature dependence of the average level of piezoresponse signal exhibits two peaks due to bulk structural phase transition and coherent quantum state. © 2015 Taylor & Francis Group, LLC.
Author keywords:
low temperature piezoresponse force microscopy; Strontium titanate ceramics
Index keywords:
Ceramic materials; Oxygen vacancies; Scanning probe microscopy; Strontium; Strontium titanates; Temperature; Temperature distribution; Titanium compounds; Low temperature dynamics; Piezoresponse; Piez
DOI:
10.1080/00150193.2015.998976
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928107273&doi=10.1080%2f00150193.2015.998976&partnerID=40&md5=31390c8f6b5021be73dc3e9a2435937f
Соавторы в МНС:
Другие поля
Поле Значение
Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-84928107273&doi=10.1080%2f00150193.2015.998976&partnerID=40&md5=31390c8f6b5021be73dc3e9a2435937f
Affiliations St. Petersburg State Polytechnical University, St.-Petersburg, Russian Federation; Institute of Natural Sciences, Ural Federal University, Ekaterinburg, Russian Federation; Department of Materials and Ceramic Engineering and CICECO, University of Aveiro, Aveiro, Portugal; St. Petersburg State University, St.-Petersburg, Russian Federation
Author Keywords low temperature piezoresponse force microscopy; Strontium titanate ceramics
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Correspondence Address Andreeva, N.; St. Petersburg State Polytechnical UniversityRussian Federation
Publisher Taylor and Francis Inc.
CODEN FEROA
Language of Original Document English
Abbreviated Source Title Ferroelectrics
Source Scopus